PHP获取IP的多种方式解析

最新推荐文章于 2021-05-13 11:09:00 发布

Jtype

最新推荐文章于 2021-05-13 11:09:00 发布

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CC 4.0 BY-SA版权

文章标签： php server user function

本文链接：https://blog.youkuaiyun.com/Jtype/article/details/6502911

本文介绍了六种不同的PHP获取客户端IP地址的方法，包括通过$_SERVER变量和getenv函数检查HTTP头信息及REMOTE_ADDR等，适用于不同场景下精确获取用户的真实IP。

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PHP获取IP的多种方式解析：

PHP获取IP方法一：

<?php
echo "<br>";
?>
<?php
function GetIP()
{
if(!empty($_SERVER["HTTP_CLIENT_IP"]))
$cip = $_SERVER["HTTP_CLIENT_IP"];
else if(!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
$cip = $_SERVER["HTTP_X_FORWARDED_FOR"];
else if(!empty($_SERVER["REMOTE_ADDR"]))
$cip = $_SERVER["REMOTE_ADDR"];
else
$cip = "无法获取！";
return $cip;
}
echo "<br>";
?>

PHP获取IP方法二：

<?php 
echo "<br>";  
?> 
 
<? 
error_reporting (E_ERROR | E_WARNING | E_PARSE);  
if($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"])   
{                                                 
        $ip = $HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"];  
         
}                                                 
elseif($HTTP_SERVER_VARS["HTTP_CLIENT_IP"])       
{                                                 
        $ip = $HTTP_SERVER_VARS["HTTP_CLIENT_IP"];  
            
}                                                 
elseif ($HTTP_SERVER_VARS["REMOTE_ADDR"])          
{                                                 
        $ip = $HTTP_SERVER_VARS["REMOTE_ADDR"];     
               
}                                                 
elseif (getenv("HTTP_X_FORWARDED_FOR"))             
{                                                 
        $ip = getenv("HTTP_X_FORWARDED_FOR");     
                  
}                                                 
elseif (getenv("HTTP_CLIENT_IP"))                   
{                                                 
        $ip = getenv("HTTP_CLIENT_IP");     
                        
}             
                                    
elseif (getenv("REMOTE_ADDR"))                      
{                                                 
        $ip = getenv("REMOTE_ADDR");   
                           
}          
                                       
else                                              
{                                                 
        $ip = "Unknown";       
                                    
}                                                 
echo "你的IP地址是:".$ip."<br>";                               
?>

PHP获取IP方法三：

<?php 
echo "<br>";  
?> 
 
<? 
$iipp = $_SERVER["REMOTE_ADDR"];  
echo $iipp;  
echo "<br>";  
?>

PHP获取IP方法四：

<?php 
echo "<br>";  
?> 
 
<?php 
$user_IP = ($_SERVER["HTTP_VIA"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : $_SERVER["REMOTE_ADDR"];  
$user_IP = ($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"];  
echo $user_IP."<br>";  
?>

PHP获取IP方法五：

<?php 
echo "<br>";  
?> 
 
<? 
function get_real_ip()  
{  
        $ip=false;  
        if(!empty($_SERVER["HTTP_CLIENT_IP"]))  
        {  
             $ip = $_SERVER["HTTP_CLIENT_IP"];  
        }  
        if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))  
        {  
             $ips = explode (", ", $_SERVER['HTTP_X_FORWARDED_FOR']);  
             if ($ip)  
             {  
                      array_unshift($ips, $ip); $ip = FALSE;  
             }  
             for ($i = 0; $i < count($ips); $i++)  
             {  
                      if (!eregi ("^(10|172/.16|192/.168)/.", $ips[$i]))  
                      {  
                                $ip = $ips[$i];  
                                break;  
                      }  
             }  
        }  
        return ($ip ? $ip : $_SERVER['REMOTE_ADDR']);  
}  
echo get_real_ip();  
echo "<br>";  
?>

PHP获取IP方法六：

<?php 
echo "<br>";  
?> 
 
<? 
if(getenv('HTTP_CLIENT_IP'))  
{  
        $onlineip = getenv('HTTP_CLIENT_IP');  
}  
elseif(getenv('HTTP_X_FORWARDED_FOR'))  
{  
        $onlineip = getenv('HTTP_X_FORWARDED_FOR');  
}  
elseif(getenv('REMOTE_ADDR'))  
{  
        $onlineip = getenv('REMOTE_ADDR');  
}  
else  
{  
        $onlineip = $HTTP_SERVER_VARS['REMOTE_ADDR'];  
}  
echo $onlineip;  
echo "<br>";  
?>